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Parameterization analysis method for rapidly obtaining section performance of component

An analysis method and parametric technology, applied in design optimization/simulation, electrical digital data processing, special data processing applications, etc., can solve the problems of incomplete extraction parameters, low efficiency, and complicated operation of component section calculation methods.

Active Publication Date: 2021-09-10
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the defects of complex operation, low efficiency, and incomplete extraction of parameters in the calculation method of component section in the above-mentioned prior art, the present invention proposes a parametric analysis method for quickly obtaining component section performance

Method used

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  • Parameterization analysis method for rapidly obtaining section performance of component
  • Parameterization analysis method for rapidly obtaining section performance of component
  • Parameterization analysis method for rapidly obtaining section performance of component

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Example 1: A method for obtaining the performance of a rectangular section of a reinforced concrete member

[0061] In the present embodiment, the cross-section of the steel mesh used for the reinforced concrete member is a rectangular frame. In this embodiment, the design parameters of the reinforced concrete member are first obtained as follows:

[0062] Thickness c of protective layer concrete 2 0 , the length value L and width value W of the reinforced concrete member section, the axial compression ratio R ac , reinforcement ratio ρ l .

[0063] In this embodiment, when calculating the rectangular section performance of the reinforced concrete member, the steps are as follows:

[0064] Step 1: Obtain the cross-sectional area A of the reinforced concrete member g , A g =L×W, combining the cross-sectional area of ​​reinforced concrete members and the reinforcement ratio ρ of reinforced concrete members l Calculation of the total area A of the longitudinal bar 1 ...

Embodiment 2

[0106] Hereinafter, the above embodiment 1 is modeled and compared with specific parameters through Xtract and matlab, so as to verify the method.

[0107] In this example, the cross-section of a rectangular reinforced concrete member of 1.4m×1.4m is modeled. The reinforced concrete member is equipped with 52 longitudinal bars 1 with a diameter of 24mm, the spacing between the stirrups is 100mm, and the volume reinforcement ratio of the longitudinal bars 1 is 1.2%. , the reinforced concrete members use C40 concrete and HRB400 steel bars. That is, in this embodiment, L=W=1.4m, and the thickness of the concrete 2 of the protective layer is c 0 40mm, ρ l =1.2%, the axial pressure ratio is set to R ac = 0.1.

[0108] According to the above parameters, obtained through Xtract The curve is used as a reference curve, and is modeled by matlab and executed from the first step to the fifth step in Embodiment 1 to obtain The curve is used as the actual curve, and the comparison be...

Embodiment 3

[0110] In this embodiment, on the basis of Example 2, the length L of the section of the rectangular reinforced concrete member is respectively taken as 1.1 meters, 1.2 meters, 1.3 meters, 1.4 meters and 1.5 meters, and the length L of the section of the reinforced concrete member is obtained by Xtract. Curve is as reference curve, to obtain by matlab in conjunction with the method described in embodiment 1 curves as actual curves, reference curves and actual curves such as Figure 9 As shown, it can be seen that in the case of different lengths L, the actual curve and the reference curve are highly consistent, which proves that different section lengths do not affect the accuracy of the method for analyzing the constructed section.

[0111] Combined with Table 2 below, for Figure 9 The curvature of the slightly damaged state and the curvature of the collapsed damage state corresponding to different lengths in the medium are compared.

[0112] Table 2: Curvature compariso...

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Abstract

According to the parameterization analysis method for rapidly obtaining the section performance of the component, continuous processing of the section of the longitudinal bars in the section of the reinforced concrete component is achieved through establishment of the two-dimensional plane model, the discretely-distributed longitudinal bars are equivalent to a continuous middle sleeve area, the integral formula is established based on the two-dimensional plane model, and the performance of the section of the reinforced concrete member is analyzed. Thus, the performance analysis of the section of the reinforced concrete member is simplified, and through the consistency of the two-dimensional plane model and the actual composition of the section of the reinforced concrete member, it is guaranteed that the performance parameters of the section of the reinforced concrete member are accurately and reliably calculated through the two-dimensional plane model.

Description

technical field [0001] The invention relates to the field, in particular to a parametric analysis method for quickly obtaining the section properties of components. Background technique [0002] At present, the software used for component cross-section calculation is mainly developed according to foreign codes, and there are certain differences between analysis control parameters and material properties and domestic regulations. If they are copied and used, large errors or even wrong results will be obtained. Moreover, when dealing with the information of the conventional CFST section, the required information cannot be provided quickly. After inputting relevant data in daily operations, the output data needs to be counted and classified one by one, which cannot be analyzed on a large scale, and the influence of each variable on the limit state of section curvature cannot be summarized, nor can it be optimized for actual engineering. For example, Xtract and other related so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F119/14
CPCG06F30/20G06F2119/14
Inventor 钟剑倪明李想杨涛魏圆圆王伟
Owner HEFEI UNIV OF TECH
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